I08 HYPERICACEAE 



sepibus, I)r. DiVenius' MSS., 1730. II. quadrangulum, Bagnor Marsh, 

 Russell's Cat. 1839. 



1. Isis. Pusey, BosweU. Buckland. Faringdon. Near Lechlade. 



Appleton. Wytliam, 



2. Ock. //. quadrawjulatum, Bagley, Baxter MSS., 1829. Banks of 



Thames at Nuneham, Grose. Denchworth, IVait. Boar's Hill. 

 South Hinksey. Frilford. Shippon. Wootton. Marcham. 

 Wantage. Letcombe. UflSngton. Cothill. Cumnor. Radley. 

 Sutton Courtney. Wallingford. Garford. Lockinge. 



3. Pang. Tilehurst, Tufnail. Pangbourn. Bradfield. Bucklebury. 



Tidmarsh. 



4. Kennet. Bagnor Marsh, H. quadrangulum^ Russell's Cat. Kint- 



bury, Hewett (1834), Herh. Brit. Mus. Catmore, Miss Humfrey. 

 Mortimer. Aldermaston. Hungerford. Lambourn. Theale. 

 Near Reading. 



5. Loddon. Blackwater, Penny. By the river at Marlow, Mill. 



Wargrave, Melrill. Frequent about Park Place, Stanton. Bagshot. 

 Ambarrow. Swallowfield. Long Moor. Finehampstead. Cole- 

 man's Moor. Bracknell. Bisham. Sonning. Maidenhead. 

 Bray. Windsor Park. Virginia Water, &c. 

 The plant is represented in the Dillenian Herbarium by a curious 

 form, which, after consultation with a well-known critical botanist, 

 I referred in the Flora of Oxfordshire to H. quadramjuluyn ; the specimen 

 is in bad condition, but I believe I am correct in my judgement in 

 placing it under this species. The leaves are punctate, but the flowers 

 are rather larger and the inflorescence more branched than in the 

 usual form. 



H. acutum is found in all the bordering counties. 



The Index Kewensis gives Smith as the authority for the name H. qtiad- 

 rangtdare, and cites E. B. t. 370, but it is there named H. quadrangulum ; 

 Smith, it is true, gives a reference for H. quadrangulare to Linnaeus' Systema 

 and to Stokes' edition of Withering^s Bot. Arr. 



There is no doubt that the name quadi-atum, iised by Stokes in his Materia 

 Medica, 1812, is later than the name acutum, which is used by Moench in the 

 Methodus of 1794 : but the name quadrangidare, used by Sibthorp in the Flora 

 Oxon. in the same year, and by Stokes in 1787, was probably meant for this 

 species, which may indeed be the plant so named by Linnaeus in the Systema ; 

 it is a question therefore whether H. acutum should not bear the name 

 H. quadrangulare of Stokes or Linnaeus. 



H. humifusum, Linn. Sp. PI. 785 (1753). Creeping St. John's Wort. 

 Hypericum supinum glabrum. Ger. Em. 541. H. minus, Gesner. 



Top. Bot. 89. Syme, E. B. ii. 155, t. 271. Nyman, 134. Fl. Oxf. 64. 



Native. Ericetal. Heaths, dry pastures, on gravelly soil, sandy 

 flelds. Local in the Isis, Ock, the eastern part of the Pang, the 

 northern portion of the Kennet district, and in the eastern 



